MINI F3 Bluetooth Charging Treasure Laser Virtual Projection 2 in 1 Keyboard(Silver)

Type:Virtual KeyboardApplication:LaptopKeyboard Standard:Laptop KeyboardOperation Style:CapacitiveInterface Type:Bluetoothspecification:1. Light source: red laser diode2. Keyboard layout: about 19MM tilt, QWERTY keyboard layout3. Keyboard size: 100mm (H) * 240mm (W)4. Keyboard position: 100mm from the bottom of the emitter5. Projection surface: no reflection, opaque surface6. Recognition rate: 350 words / minute7. Operation surface: any plane8. Working environment: -10 ~ 40 ° C / 90% RH9. Storage environment: -20 ~ 40 ° C / -90% RH10. Size (mm): 84mm × 22.5mm × 58mm11. Weight (g): 180g12. External power supply: USB power / below 5V1A13. Battery capacity: lithium polymer rechargeable battery 5200mAH (MAX) @ 3.7V14. Battery working time: 30 hours15. Battery charging time: 3 hours16.USB interface: USU1.12.0, USB HID Ver.1.017. Bluetooth: V3.0 (class2), HID Profile.1.018. Frequency range: 2402-2480MHz19. Channel: 7920. Modulation: GFSK